CN101272045A - Automatic cable winding and unwinding device for vehicle mounted mast - Google Patents
Automatic cable winding and unwinding device for vehicle mounted mast Download PDFInfo
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- CN101272045A CN101272045A CNA2008100181726A CN200810018172A CN101272045A CN 101272045 A CN101272045 A CN 101272045A CN A2008100181726 A CNA2008100181726 A CN A2008100181726A CN 200810018172 A CN200810018172 A CN 200810018172A CN 101272045 A CN101272045 A CN 101272045A
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Abstract
The invention discloses an automatic cable reel device used for a vehicle mast. The device includes a drive mechanism, a dial wheel mechanism, a cable feeding mechanism and a spring mechanism that are all mounted on a supporting framework body. The drive mechanism transmits a drive power to the dial wheel mechanism, the cable feeding mechanism and the spring mechanism simultaneously when the steel wire of the drive mechanism is drawn by the rising of the mast to lead the spring mechanism to store energy by winding; the dial wheel mechanism is driven to transmit the cables to the cable feeding mechanism in orders to release the cables flatly in the mode of clamping; the spring mechanism can release energy when the mast descends and can transfer a power to the cable feeding mechanism and the dial wheel mechanism through the drive mechanism; the cables are collected by the cable feeding mechanism into the supporting framework body and regularly piled through the dial wheel mechanism. The device of the invention has the advantages of a simple structure, low cost, with no twisting, no coiling and no effects on the signal and energy transmission during the process of reeling the cables.
Description
Technical field
The invention belongs to the mechanical electric technical field, relate generally to a kind of automatic cable winding and unwinding device for vehicle mounted mast, this automatic cable winding and unwinding device is applicable to the folding and unfolding of lift height, the complicated cable of multichannel.
Background technology
All need a masts type lift telescopic bar (abbreviation mast) that light, electric equipment are given rise to certain height at emergency mobile communication, mobile television unit, army seeking scout vehicle etc., often all have very complicated cable (optical cable, cable) to be connected between these equipment and the car internal fixation equipment.These cables do not twine in the equipment lifting process in order to make, twisting, need the cable can be with mast lifting automatic deploying and retracting.Cable should not influence photosignal and power transfer in the cable in the mast lifting process.Vehicle mounted mast mainly adopts coiled coil formula, collapsible (referring to USP6158555) and three kinds of cord reeling methods of sliding ring type both at home and abroad at present.Wherein coiled coil take-up method is that cable is upwards coiled along mast as spring, the spring cable can be with the mast lift telescopic, this scheme need be in cable the suitable steel-wire carcass of support elastic, stroke is difficult to guarantee that cable does not take place to hang with mast bumps and self snarl when long; Folding take-up method is that cable along the line moves towards to arrange folding stand, cable is laid on the folding stand, launches along with mast rises folding stand, mast decline folding stand is folding to be drawn in, the problem of its existence is that burden and cable that folding stand can increase cable cause cable to fracture in the folding meeting of same position; The sliding ring type more complicated, adopt rotating mechanism to twine cable, in the rotation winding process, adopt slip ring to guarantee that mast signal up and down connects, cable for a small amount of core number is a good solution, but then need to be equipped with electric slip ring and optical fiber slip ring for electric light mixing multi-core cable, this can increase substantially cost, increases complexity and reduce reliability, and slip ring also can increase weak signal transmission noise in addition.Therefore, also must seek a kind of new automatic cable winding and unwinding device, to solve the folding and unfolding problem that needs complicated cables such as lift height, multiple signals transmission such as military scouting equipment.
Summary of the invention
The technical problem to be solved in the present invention is, for vehicle mounted mast provides a kind of structure simple relatively and can avoid cable to twine turning round, twist the automatic cable winding and unwinding device around, the defective that fractures, the cable of this device institute folding and unfolding can be multiple signals cable, feed cable, it also can be the mixing cable of optical cable and cable, and the lifting of drawing cable and mast is synchronous, and guarantees the normal transmission of signal and energy in the folding and unfolding process.
For solving the problems of the technologies described above, the present invention includes the carriage support body, the driving mechanism that contains driving wheel and driving shaft thereof, hinge wheel, minor sprocket, chain, steel wire, the wire agency that contains take-up pulley and take-up axle thereof, clamp wheel and clamp axle and extension spring contains clockwork spring and the clockwork that pulls out the spring piece; On described carriage support body, described driving wheel, hinge wheel all are connected on the driving shaft described driving shaft by Bearing Installation, described coil of wire on driving wheel and the top of external end head and vehicle mounted mast be connected; Described take-up axle by Bearing Installation on described carriage support body, clamp axle and two ends parallel with the take-up axle are arranged in two waist-shaped holes on the carriage support body, take-up pulley and minor sprocket all are connected on the take-up axle, clamp wheel then by Bearing Installation on the clamp axle, described extension spring two ends are connected in respectively on take-up axle and the clamp axle, two ends respectively be installed in the mast carrying platform on the cable set that links to each other with car internal fixation equipment of equipment by take-up pulley and the clamping of clamp wheel; Described chain is enclosed within on hinge wheel and the minor sprocket, and the described spring piece that pulls out is connected on the described driving shaft, and two terminations of described clockwork spring are respectively with the carriage support body with pull out the spring piece and be connected, and the clockwork spring energy storage of winding up when elevation mast rises releases energy during decline.
The present invention also comprises and contains shifting block, thumb wheel, the thumb wheel mechanism of slide track component, shifting block is provided with vertical chute and has the driving lever of through wires hole, have toggle on the end face of thumb wheel, slide track component contains two slide bars and several pulleys and several pulleys and divides two groups to be installed on the described shifting block, described thumb wheel is connected on the described driving shaft, two slide bars are along laterally placement and two ends are connected on the described carriage support body, described two groups of pulleys are slidingly matched with two slide bars respectively and described toggle is embedded in vertical chute of shifting block, and described cable set is passed by the through wires hole of described driving lever.
Beneficial effect of the present invention is embodied in the following aspects:
(1) the present invention is in the vehicle mounted mast uphill process, by mast the draw of steel wire is driven driving wheel along certain direction rotation, the rotatablely moving and pass to spring poking block and hinge wheel simultaneously by driving shaft of this direction: at this moment, the rotation of spring poking block makes the clockwork spring energy storage of winding up; Hinge wheel then drives the take-up pulley rotation by chain and minor sprocket, because the effect of extension spring, the reverse rotation campaign in take-up pulley is followed in the clamp crop rotation, under the common clamping of take-up pulley and clamp wheel, cable set rises along with mast straightly synchronously, has promptly realized unwrapping wire function of the present invention.In the decline process of mast, steel wire and cable set are all loosened, clockwork spring releases energy when steel wire is loosened, drive spring poking block and do opposite spin by driving shaft drive driving wheel and hinge wheel, like this, the steel wire that is loosened is coiled on the driving wheel in turn, and the cable set of being loosened is then under the common clamping of take-up pulley and clamp wheel, along with the continuous decline of mast is deposited in the carriage support body in an orderly manner, promptly realized function of receiving line of the present invention.Be not difficult to find out that the present invention only provides the actuating force of unwrapping wire and take-up by steel wire and clockwork spring, and do not need to dispose slip ring, therefore simple in structure, with low cost.
(2) because the clamp axle is adjustable with respect to the distance of take-up axle, take-up pulley and clamp wheel is to realize by the extension spring that is connected between take-up axle and the clamp axle to the holding function of cable in addition, therefore, the present invention is not only applicable to the cable set of different thicknesses, and in the retractable cable process, can not occur cable twine turn round, twist around, problem such as fracture, be controlled in the scope of an appropriateness by pulling force simultaneously extension spring, just can guarantee that the cable two ends reliably are connected with corresponding apparatus, also guarantee simultaneously the signal between the connection device of two ends and the normal transmission of energy.
(3) the present invention also is provided with thumb wheel mechanism and its thumb wheel is driven by driving shaft, toggle on the thumb wheel end face promotes shifting block and moves back and forth along slide bar, thereby the cable set of withdrawal is overlayed in the carriage support body according to certain rules, can save certain placing space, thereby make overall formation of the present invention more compact.
Description of drawings
Fig. 1 is the schematic perspective view that automatic cable winding and unwinding device structure of the present invention is formed.
Fig. 2 is the section plan that automatic cable winding and unwinding device structure of the present invention is formed.
Fig. 3 is the internal structure schematic perspective view of automatic cable winding and unwinding device of the present invention.
Fig. 4 is that the C of Fig. 3 is to view.
Fig. 5 is the stereo appearance figure by the automatic cable winding and unwinding device of clockwork one lateral projection.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and preferred embodiment.
Just as shown in Figure 1 and Figure 2, the preferred embodiment of the present invention comprises carriage support body 1 and corresponding connector and securing member, driving mechanism, thumb wheel mechanism, wire agency, clockwork.Carriage support body 1 is a rectangular enclosure housing, have the height that is lower than four sidewalls of cavity housing perpendicular to the height of the dividing plate 11 of paper (with Fig. 2 definition) and this dividing plate 11 in the middle of it, so just in the cavity housing in the formation, be provided with the elongated groove of left and right side space conducting on left and right three spaces and the dividing plate 11; The right side wall of cavity housing and base plate play load-bearing and encapsulation effect, and other sidewall and top board only play encapsulation effect, and wherein base plate is provided with cable hole, and top board is provided with cable hole and through wires hole.The base plate of carriage support body 1 generally is welded near the roof of mast.Driving mechanism mainly contains driving wheel 21, driving shaft 22, hinge wheel 23, minor sprocket 24, chain 25, steel wire 26.Driving shaft 22 is connected on the right side wall of carriage support body 1 by roll adjustment flange 12 and biserial deep groove ball bearing 13, and the right-hand member of driving shaft 22 is exposed to outside the carriage support body 1, and its left end then is positioned at the rightward space of carriage support body 1.Driving wheel 21 and hinge wheel 23 are connected on the driving shaft 22 and with first by adpting flange 14 presses spiral shell 15 to compress.Steel wire 26 is coiled on the driving wheel 21 and external end head is connected by the top that the through wires hole on carriage support body 1 top board passes back and vehicle mounted mast, the length of steel wire 26 should raise greater than the maximum of mast, when mast rose, driving wheel 21 rotations are pulled out and driven to steel wire 26 from driving wheel 21.
According to Fig. 3, shown in Figure 4, thumb wheel 51, toggle 52, shifting block 53, driving lever 54, slide track component are contained in thumb wheel mechanism.Toggle 52 is connected in the edge of an end face of thumb wheel 51, and thumb wheel 51 is connected on the driving shaft 22 and by second presses spiral shell 16 to compress.Slide track component contains two slide bars 57, three pulleys 55 and pulley spindles 56 thereof.Shifting block 53 is provided with vertical chute, three pulleys 55 by three pulley spindles 56 according to below top one side by side two be connected on the shifting block 53, driving lever 54 has the elongated through wires hole and is welded on to be set ahead on 53.Two slide bars 57 are connected on the forward and backward sidewall of carriage support body 1 along (by Fig. 2 definition) and two ends in the rightward space that laterally is placed on carriage support body 1.Be positioned at shifting block 53 two rows pulleys and be slidingly matched with two slide bars 57 respectively, and toggle 52 is embedded in vertical chute of shifting block 53, driving lever 54 enters leftward space in the carriage support body 1 by the elongated groove on the dividing plate 11.Wire agency mainly contains wired wheel support 31, take-up axle 32, take-up pulley 33, clamp axle 36,37 and two extension springs 38 of clamp wheel.Line wheel support 31 is connected in the left side wall top (referring to Fig. 2) of carriage support body 1 by screw, also is provided with dead eye and waist profile shaft hole on it, also is provided with dead eye and waist profile shaft hole in the corresponding position on the right side wall top of carriage support body 1.Take-up axle 32 two ends are connected in the dead eye on carriage support body 1 right side wall top and the line wheel support 31 by two single-row ball-bearings respectively, minor sprocket 24 and take-up pulley 33 all are connected on the take-up axle 32, chain 25 is enclosed within on hinge wheel 23 and the minor sprocket 24, and hinge wheel 23 is synchronized with the movement with driving wheel 21 and gives minor sprocket 24 and take-up pulley 33 by chain 25 with transmission of power.The two ends of clamp axle 36 are placed in the waist-shaped hole on carriage support body 1 right side wall top and the line wheel support 31, and clamp wheel 37 is contained on the clamp axle 36 by two bearing holder (housing, cover)s and is positioned at the top of carriage support body 1 leftward space.Respectively connect an extension spring 38 between the two ends of take-up axle 32 and clamp axle 36.Many cables that link to each other with car internal fixation equipment and optical cable colligation have just been formed cable set 6 together, cable set 6 enters into leftward space in the carriage support body 1 by the cable hole on carriage support body 1 base plate, pass by the cable hole on support body framework 1 top board behind the elongated through wires hole, take-up pulley 33 that passes driving lever 54 more from the bottom to top successively and the tangent position of clamp wheel 37, and with the corresponding connection of equipment on the mast carrying platform.When driving driving wheel 21 rotations when the mast rising, hinge wheel 23 and thumb wheel 51 also rotate simultaneously: on the one hand, under the effect of chain 25 and minor sprocket 24 and extension spring 38, take-up pulley 33 is done rightabout rotation with clamp wheel 37, thus the 6 straight risings of clamping cable set; On the other hand, be positioned at toggle 52 on the thumb wheel 51 when making circular motion, promote shifting block 53 and do reciprocal translational motion, make the cable set 6 that is deposited in carriage support body 1 leftward space according to from top to bottom order line sending along two slide bars 57.Be not difficult to find out also that thus in the take-up process of thumb wheel mechanism when mast descends, can play the effect of neatly stacking cable set by layer, this point provides certain technical support for reducing volume of the present invention.Simultaneously, pulley 55 can reduce the kinetic friction force between slide bar 57 and the shifting block 53, makes retractable cable process of the present invention more smooth.
According to shown in Figure 5, clockwork comprises going barrel 41, clockwork spring 42, spring poking block 43.At the bottom of the box of going barrel 41 and lid all have centre bore.Clockwork spring 42 is encapsulated in the going barrel 41, and its external end head is fixed on the going barrel 41, and inner termination and spring poking block 43 are connected, and spring poking block 43 can rotate relative to going barrel 41.Going barrel 41 all is enclosed within on the driving shaft 22 that is positioned at stand frame support body 1 right side wall outside with clockwork spring 42, and the right side wall of going barrel 41 and carriage support body 1 is connected, and spring poking block 43 is connected with driving shaft 22 and presses spiral shell 17 to compress by the 3rd.When mast rise to drive driving shaft 22 rotations, spring poking block 43 rotated and to the clockwork spring energy storage of winding up relative to going barrel 41 with a direction (clockwise or counterclockwise); When mast descended and in moment that steel wire 26 loosens, clockwork spring 42 is released energy, driving spring poking block 43 rotates relative to going barrel 41 to another direction (counterclockwise or clockwise), drive driving shaft 22, driving wheel 21, hinge wheel 23 rotate simultaneously, progressively be coiled on the driving wheel 21 by the steel wire 26 that loosened, the cable set of being loosened fitly overlays under the effect of wire agency, thumb wheel mechanism in the leftward space in the carriage support body 1.
According to such scheme as can be known, for making take- up pulley 33 and 37 take-ups smoothly of clamp wheel, cable is not piled up outside box, between take-up pulley 33, clamp wheel 37 and the cable set 6 enough frictional force should be arranged.This frictional force is mainly derived from the pulling force of extension spring 38, and pulling force is too little, might cause cable to skid, and pulling force is too big, can increase clockwork spring take-up load.Need come the pulling force of appropriate design extension spring 38 according to the diameter and the surface roughness of cable set 6.Calculate the number of turns of steel wire 26 according to the lift of mast and the diameter of driving wheel 21 around driving wheel, and choose suitable clockwork spring 42 according to this, neither should mast rise to pulling force tension when high-end and to mast cause burden, pulling force is crossed pine and can't take-up when also should not be in mast and reduce to low side.The number of effective coils n of clockwork spring 42 is by unwrapping wire height h and driving wheel 21 diameter R decision, that is: n=h/2 π R, and clockwork spring loosens the number of turns: n in box
1〉=1.8n could guarantee that impulse stroke is steady, and then clockwork spring length is pressed the following formula estimation: L=π R
t(1.745n
1+ 0.67)=3.2n π R
t, R wherein
tRadius for going barrel.
Claims (2)
1. automatic cable winding and unwinding device for vehicle mounted mast, it is characterized in that: this device comprises carriage support body [1], the driving mechanism that contains driving wheel [21] and driving shaft [22] thereof, hinge wheel [23], minor sprocket [24], chain [25], steel wire [26], contain the wire agency of take-up pulley [33] and take-up axle [32] thereof, clamp wheel [37] and clamp axle [36] and extension spring [38], contain clockwork spring [42] and pull out the clockwork of spring piece [43]; Described driving shaft [22] is installed on the described carriage support body [1] by bearing [13], described driving wheel [21], hinge wheel [23] all are connected on the driving shaft [22], and described steel wire [26] is coiled on the driving wheel [21] and the top of external end head and vehicle mounted mast is connected; Described take-up axle [32] by Bearing Installation on described carriage support body [1], clamp axle [36] and two ends parallel with take-up axle [32] are arranged in two waist-shaped holes on the carriage support body, take-up pulley [33] and minor sprocket [24] all are connected on the take-up axle [32], clamp wheel [37] then by Bearing Installation on clamp axle [36], described extension spring [38] two ends are connected in respectively on take-up axle [32] and the clamp axle [36], two ends respectively be installed in the mast carrying platform on the cable set [6] that links to each other with car internal fixation equipment of equipment by take-up pulley [33] and [37] clamping of clamp wheel; Described chain [25] is enclosed within on hinge wheel [23] and the minor sprocket [24], the described spring piece [43] that pulls out is connected on the described driving shaft [22], two terminations of described clockwork spring [42] are respectively with carriage support body [1] with pull out spring piece [43] and be connected, clockwork spring [42] energy storage of winding up when elevation mast rises releases energy during decline.
2. automatic cable winding and unwinding device for vehicle mounted mast according to claim 1, it is characterized in that: also comprise and contain shifting block [53], thumb wheel [51], the thumb wheel mechanism of slide track component, shifting block [53] is provided with vertical chute and has the driving lever [54] of through wires hole, have toggle [52] on the end face of thumb wheel [51], slide track component contains two slide bars [57] and several pulleys [55] and several pulleys and divides two groups to be installed on the described shifting block [53], described thumb wheel [51] is connected on the described driving shaft [22], two slide bars [57] are along laterally placement and two ends are connected on the described carriage support body [1], described two groups of pulleys [55] are slidingly matched with two slide bars [57] respectively and described toggle [52] is embedded in vertical chute of shifting block [53], and described cable set [6] is passed by the through wires hole of described driving lever [54].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810018172 CN101272045B (en) | 2008-05-12 | 2008-05-12 | Automatic cable winding and unwinding device for vehicle mounted mast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810018172 CN101272045B (en) | 2008-05-12 | 2008-05-12 | Automatic cable winding and unwinding device for vehicle mounted mast |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101272045A true CN101272045A (en) | 2008-09-24 |
| CN101272045B CN101272045B (en) | 2010-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810018172 Active CN101272045B (en) | 2008-05-12 | 2008-05-12 | Automatic cable winding and unwinding device for vehicle mounted mast |
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| CN (1) | CN101272045B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852906A (en) * | 2010-06-30 | 2010-10-06 | 山东英特力光通信开发有限公司 | Optical cable recovery method of cable-retractable integrated car |
| CN102680264A (en) * | 2012-05-23 | 2012-09-19 | 浙江大学 | Wind load testing device and method of vehicle-mounted mast lifting system |
| CN104495661A (en) * | 2014-12-25 | 2015-04-08 | 东莞市天楠光电科技有限公司 | Multifunctional safe lifter |
| CN105406411A (en) * | 2015-12-29 | 2016-03-16 | 国家电网公司 | Clamp for repairing strand-broken power transmission wire |
| CN106099304A (en) * | 2016-08-04 | 2016-11-09 | 深圳市偲诺电子科技有限公司 | Cable drum device and there is the lifting antenna system of this device |
| CN106144786A (en) * | 2016-06-29 | 2016-11-23 | 安徽维麦重工股份有限公司 | A kind of lift truck attachment optical cable automatic deploying and retracting mechanism |
| CN106862821A (en) * | 2017-04-20 | 2017-06-20 | 宁波逐星机械设计有限公司 | A kind of welder |
| CN107175436A (en) * | 2017-04-20 | 2017-09-19 | 宁波逐星机械设计有限公司 | A kind of welder of long lifespan |
| CN108206500A (en) * | 2017-12-29 | 2018-06-26 | 中国电子科技集团公司第二十研究所 | A kind of simple routing device of turntable direction rotating shaft |
| CN108259862A (en) * | 2018-04-18 | 2018-07-06 | 苏州环之道智能科技有限公司 | A kind of telecommunication satellite TV direct broadcasting satellite service equipment |
| CN111293404A (en) * | 2020-03-19 | 2020-06-16 | 温州漂逸科技有限公司 | Communication antenna device for deep hole exploration |
| CN112713474A (en) * | 2020-12-28 | 2021-04-27 | 浙江建设职业技术学院 | Line ware is put in order to contraction type cable |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6158555A (en) * | 1999-04-16 | 2000-12-12 | Brown, Jr.; James M. | Apparatus and method for carrying wires along a vehicle-mounted extensible mast |
| CN100353628C (en) * | 2003-04-30 | 2007-12-05 | 上海振华港口机械（集团）股份有限公司 | Equipment for leading cable pass in and out cable frame |
-
2008
- 2008-05-12 CN CN 200810018172 patent/CN101272045B/en active Active
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852906A (en) * | 2010-06-30 | 2010-10-06 | 山东英特力光通信开发有限公司 | Optical cable recovery method of cable-retractable integrated car |
| CN102680264A (en) * | 2012-05-23 | 2012-09-19 | 浙江大学 | Wind load testing device and method of vehicle-mounted mast lifting system |
| CN102680264B (en) * | 2012-05-23 | 2014-04-30 | 浙江大学 | Wind load testing device and method of vehicle-mounted mast lifting system |
| CN104495661A (en) * | 2014-12-25 | 2015-04-08 | 东莞市天楠光电科技有限公司 | Multifunctional safe lifter |
| CN105406411A (en) * | 2015-12-29 | 2016-03-16 | 国家电网公司 | Clamp for repairing strand-broken power transmission wire |
| CN105406411B (en) * | 2015-12-29 | 2017-04-26 | 国家电网公司 | Clamp for repairing strand-broken power transmission wire |
| CN106144786B (en) * | 2016-06-29 | 2018-02-23 | 安徽维麦重工股份有限公司 | A kind of lift truck attachment optical cable automatic deploying and retracting mechanism |
| CN106144786A (en) * | 2016-06-29 | 2016-11-23 | 安徽维麦重工股份有限公司 | A kind of lift truck attachment optical cable automatic deploying and retracting mechanism |
| CN106099304A (en) * | 2016-08-04 | 2016-11-09 | 深圳市偲诺电子科技有限公司 | Cable drum device and there is the lifting antenna system of this device |
| CN106099304B (en) * | 2016-08-04 | 2021-04-27 | 深圳市偲诺电子科技有限公司 | Cable drum device and lifting antenna system with same |
| CN106862821A (en) * | 2017-04-20 | 2017-06-20 | 宁波逐星机械设计有限公司 | A kind of welder |
| CN107175436A (en) * | 2017-04-20 | 2017-09-19 | 宁波逐星机械设计有限公司 | A kind of welder of long lifespan |
| CN108206500A (en) * | 2017-12-29 | 2018-06-26 | 中国电子科技集团公司第二十研究所 | A kind of simple routing device of turntable direction rotating shaft |
| CN108259862A (en) * | 2018-04-18 | 2018-07-06 | 苏州环之道智能科技有限公司 | A kind of telecommunication satellite TV direct broadcasting satellite service equipment |
| CN111293404A (en) * | 2020-03-19 | 2020-06-16 | 温州漂逸科技有限公司 | Communication antenna device for deep hole exploration |
| CN112713474A (en) * | 2020-12-28 | 2021-04-27 | 浙江建设职业技术学院 | Line ware is put in order to contraction type cable |
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| CN101272045B (en) | 2010-06-09 |
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